EFFECT OF NOZZLE SHAPE AND PRESSURE ON WATER DISTRIBUTION

El-Berry, A. M.; Ramadan, M. Hany; El-Adl, Mohsen A.; Abdel Mageed, Hashem Mahmoud M.

doi:10.21608/mjae.2009.109882

EFFECT OF NOZZLE SHAPE AND PRESSURE ON WATER DISTRIBUTION

Document Type : Original Article

Authors

¹ Prof of Agric. Eng., Dep. of Agric. Eng. , Faculty of Agriculture, Cairo University, Egypt.

² Assoc. Prof of Agric. Eng. Dep. of Agric. Eng., Faculty of Agriculture, Al-Mansoura University, Egypt.

³ Agric. Res. Ins., Alexandria Branch, Alexandria, Egypt

10.21608/mjae.2009.109882

Abstract

Sprinklers with circular and noncircular nozzles were tested to determine the water application patterns. Circular nozzles usually produced greater wetted radii than noncircular nozzles. Noncircular nozzles have the advantages of providing an acceptable water application pattern over the entire precipitation profile at low operating pressure. Noncircular nozzles (square, rectangular and triangular) were compared to circular nozzle for water application profiles with 100% overlapping. The over irrigation percentage was higher for circular nozzle than all shapes of noncircular nozzles.

Keywords

Main Subjects

Agricultural Irrigation and Drainage Engineering

References

Addink, J.W., 1981. Design and Operation of Sprinkler Systems. PP 621-660 Cited from Design and operation of farm irrigation systems. 859 P. Ed. M. E. Jensen. An ASAE Monograph, No.3, ASAE, 2950 Niles Rd. St. JosephMI, USA.

Chen Dadiao and W. W. Wallender, 1985. Droplet size distribution and water application with low pressure sprinklers. Transactions of the ASAE 511-516.

Christiansen, J. E. 1942. Irrigation by sprinkling. Univ. of Calif. Agric. Exp. Sta. Bul. 670. 124 p.

Li, J., H. Kawano and K. Yu, 1994. Droplet size distributions from different shaped sprinkler nozzles. Transactions of the ASAE 37 (6) : 1871-1878.

Michale A.M., 1978 . Irrigation Theory and Practice, Vikas Publishing House PVT LTD. First edition, 1978: 801.

Richards, P.J. and E.K. Weatherhead, 1993. Prediction of rain gun application patterns in windy conditions. J. Agric. Eng. Research 54(4): 281-291.

Shull, H and A. S. Dylla, 1976. Wind effects on water application patterns from a large single nozzle sprinkler Transactions of the ASAE 19 (3): 501-504.

Soil Conservation Services, (SCS), 1984. Sprinkle irrigation. U.S. Department of Agric., Soil Conservation Services, National Eng. Handbook, Chapter 11, Section 15: 315

Solomon, K. 1979. Variability of sprinkler coefficient of uniformity test results. Transactions of the ASAE 22 (5) : 1078-1986

Vories, E. D. and R. D. Von Bernuth, 1986. Single nozzle sprinkler performance in wind. Transactions of the ASAE 29 (5) : 1325-1330.

Vories, E. D., R. D. Von Bernuth and R. H. Mickelson., 1987. Simulating sprinkler performance in wind. J. Irrig. Drain. Div. ASCE 113 (1): 119-130.

Walker, W.R., 1980. Sprinkler and Trickle Irrigation. ColoradoStateUniversity, Fort Collins, Colorado 80-523.

Wiersma, John L., 1955. Effect of wind variation on water distribution from rotating sprinklers, South Dakota State University Agr. Exp. Sta. Techn. Bull. No. 17, May.